Harman Kardon Recent Questions, Troubleshooting Help & Support

I would remove the potentiometer and note te maker and value plus the size. then look on Mouser, RS Components or another supplier and source a suitable replacement.

Check the power supply switch and power supply section. Here is service manual for help. Harman Kardon AVR 3500 Service Manual (Page 51 of 52) ' ManualsLib

According to the Harman-Kardon AVR 630 User Manual, if the 8CH mode is not available, you can try unplugging the unit from the AC wall outlet and waiting for at least three minutes. After the pause, reconnect the AC power cord and check the unit's operation. If the system still malfunctions, a system reset may clear the problem. The 8CH may not be available according to the user manual. You need to contact Harman-Kardon customer support.

Check the power button first. It is Ok ? It may require replacement.

i recommend you turn off the receiver and then disconnect it from the power outlet for a few minutes

headphone is audio out for your headphones not audio in. you will need to buy mic pre amp and use output to aux or preferably tape in RCA connectors.

Here is your remote. https://www.google.com/search?q=harman+kardon+avr+300+replacement+remote+control It sounds like components within the amp have failed. Take it to a good audio tech. It is worth fixing.

does the sub have a power supply, ie a power cord, if it does this is do able if it does not, then it has no amp for the sub and would require that

See my Post herehttp://www.fixya.com/support/t15826473-replace_speaker_bass_sound_broken

Has the same problem. Note: There is a powerswitch on the subwoofer! Pust on the volume knob and the system switches on and off. Hope this helps anyone else.

Question moved from Misc. In the link possibly https://www.google.com/search?q=Harman+Kardon+Soundsticks+II+4+pin+mini+din+cable ..

preout works with active speakers

Hello, there is no fuse for the screen, there is a power supply circuit that makes it work and that if it is wrong the screen does not work The rest of the team works well? Can you hear something? if not, you do not have a display problem, you have a bigger problem If you have knowledge to review it, I will attach the service manual, but go to a specialized technical service Hola, no hay fusible para la pantalla, hay un circuito de fuente de alimentaci?n que lo hace funcionar y que si esta mal la pantalla no funciona El resto del equipo funciona bien?, puedes escuchar algo? si no, no tienes un problema de display, tienes un problema mayor si tienes conocimientos como para revisarlo, te adjunto el service manual, sino dir?gete a un servicio t?cnico especializado https://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Harman-Kardon-AVR-146-Service-Manual.pdf

Fault in one or more channels. Take your DVM and test for short circuits or take it to an HK repair shop.

try electronic cleaner on volume

Question edited for clarity. Question moved to a Harmon Kardon category. Doesn't see to be available online although some are. This is the best site https://thecodemachine.co.uk/Schematics/Search.php?manuf=Harmon%20Kardon https://www.google.com/search?q=harman+kardon+06941V+schematic+diagram Try contacting their support direct https://ca.harmankardon.com/support-knowledgebase.html ..

Ask them where your local service centre is.

Harman Kardon Support

https://in.harmankardon.com > support-contact Our phone support is currently closed. Please submit an email or give us a call during business hours: 000 800 040 1973. Mon to Fri 10 AM to 6 PM ... ...

wrong ohm speakers

Contact Harmon Kardon directly to inquire.

Normally when you remove a unit's case everything is fixed to the base and the back. You remove the screws in the board and lift it up. See if this video helps, which is also a capacitor removal. https://www.google.com/search?q=harman+kardon+avr3550+replace+caps ..